#header{
    width:100%;
    margin:0 auto;
    text-align:center;
}
#header h1{
    font:bold 40px Arial;
    margin:0 auto;
}
#header h1 span{
	font-size: 20px;
}
#header #newgame{
    display:block;
    width:100px;
    background-color:#8f7a66;
    color:#FFF;
    font-family:Arial;
    text-decoration:none;
    
    margin:10px auto;
    padding:10px;
    border-radius:10px;
}
#header #newgame:hover{
    background-color:#9f8b77;
}
#header p{
    font-size:25px;
	font-family:Arial;
    margin:10px auto;
}
#grid-container{
    width:460px;
    height:460px;
    padding:20px;
    margin:10px auto;
    
    background-color:#bbada0;
    border-radius: 10px;
    position: relative;
}
.grid-cell{
    width:100px;
    height:100px;
	background-color:#ccc0b3;
    border-radius: 6px;
    position: absolute;
}
.number-cell{
    border-radius: 6px;
	font:bold 50px Arial;
    line-height:100px;
    text-align:center;
    position:absolute;
}